Strongly disagree. The US and its allies use to great advantage (and are also more reliant on) space than most of our adversaries. MAD policy for space hurts us more than the bad guys. Its much better to have policies that prevent the weaponization of space. If we fail at that and real shooting starts, we lose a great advantage from the standpoint of communications and remote sensing that support our warfighters on the battlefield.
That would be nice, but does not seem realistic to me. Technology is producing new paradigms for waging war, in every theatre. There are ever-increasing asymmetrical capabilities. Rogue states like NK and Iran can do great damage. And peer adversaries can quickly wipe out our advantages as you suggest. Much better to acknowledge that we need better offense and defense and build those capabilities.
Considering the other side does not give a rip for "policy" how are you going to get them to follow said policies?
Write them sternly worded letters?